Bernie Sanders launched more attacks against rival Hillary Clinton in front of thousands of supporters in California

The Republicans aren't the only ones having trouble with unity. Democratic presidential candidate Bernie Sanders launched more attacks against rival Hillary Clinton in front of thousands of supporters in California. Polls show Sanders leading in Tuesday's West Virginia primary, but the delegate math is still in Clinton's favor. Nancy Cordes reports from Louisville, Kentucky, where Clinton has two campaign events.

• May 10, 2016
• 01:40

GOP "presumptive" nominee Donald Trump is set to meet with Speaker Paul Ryan on Thursday

GOP "presumptive" nominee Donald Trump is set to meet with Speaker Paul Ryan on Thursday. Could this meeting lead to the Republican party accepting the billionaire businessman? CBS News senior political editor Steve Chaggaris and Jenna Johnson of The Washington Post join CBSN with more.

• May 9, 2016
• 06:07

In this "Face the Nation" Web Extra, Democratic presidential nominee Hillary Clinton sets the record straight on her free trade stance.

In this "Face the Nation" Web Extra, Democratic presidential nominee Hillary Clinton sets the record straight on her free trade stance.

• May 9, 2016
• 01:05

The full episode of the CBS Weekend News from the May 8, 2016 edition.

Donald Trump has a meeting on Thursday with House Speaker Paul Ryan, who says he's not ready to support Trump for president; over 500 wounded service members from 15 countries are competing in the Invictus Games

• May 8, 2016
• 20:24

CBS News political director and anchor of "Face the Nation" John Dickerson offers insight into how Donald Trump might try to win in November with a divided Republican Party

CBS News political director and anchor of "Face the Nation" John Dickerson offers insight into how Donald Trump might try to win in November with a divided Republican Party.

• May 8, 2016
• 01:14

Donald Trump has a meeting on Thursday with House Speaker Paul Ryan, who says he's not ready to support Trump for president

Donald Trump has a meeting on Thursday with House Speaker Paul Ryan, who says he's not ready to support Trump for president. Julianna Goldman has more.

• May 8, 2016
• 02:24

Despite Hillary Clinton's delegate lead and support from the establishment, Bernie Sanders has vowed to his supporters that he will keep fighting for the Democratic presidential nomination

Despite Hillary Clinton's delegate lead and support from the establishment, Bernie Sanders has vowed to his supporters that he will keep fighting for the Democratic presidential nomination. Democratic strategist Emily Tisch Sussman joins CBSN to discuss the state of the race

• May 6, 2016
• 05:17

Donald Trump may be the presumptive Republican nominee, but he still has to win over many establishment candidates of his own party

Donald Trump may be the presumptive Republican nominee, but he still has to win over many establishment candidates of his own party. CBSN political contributor and director of "Huck Pac" Hogan Gidley joins CBSN to discuss the civil war in the GOP.

• May 6, 2016
• 08:26

The full episode of the CBS Evening News from the May 6, 2016 edition

Flames once again lit up the night and were driven by winds that pushed and pulled the heat in all directions; It's pretty easy to have your order messed up when you're ordering from Starbucks, it's even easier if you're deaf

• May 6, 2016
• 20:48

With multiple Republican stalwarts saying they won't endorse Donald Trump, the presumptive GOP nominee said he didn't need their approval anyway

With multiple Republican stalwarts saying they won't endorse Donald Trump, the presumptive GOP nominee said he didn't need their approval anyway. Meanwhile, Speaker of the House Paul Ryan, who said Thursday he wasn't ready to endorse Trump, plans to meet with Trump next week. Major Garrett has more.

• May 6, 2016
• 02:07

President Obama voiced a few of his opinions on presumptive GOP presidential nominee Donald Trump as well as the Democratic primary race Friday

President Obama voiced a few of his opinions on presumptive GOP presidential nominee Donald Trump as well as the Democratic primary race Friday. CBS News senior political editor Steve Chaggaris joins CBSN with more on how Obama may influence the 2016 race for the White House.

• May 6, 2016
• 06:30

President Obama had some choice words Friday when asked about Donald Trump, the presumptive GOP presidential nominee

President Obama had some choice words Friday when asked about Donald Trump, the presumptive GOP presidential nominee. The president also gave the media a piece of his mind for their coverage of the Trump campaign. CBSN's Vladimir Duthiers has more on Obama's remarks.

• May 6, 2016
• 03:23

Speaker Paul Ryan (R-Wisconsin) said Thursday he is "not ready" to throw his support behind Donald Trump

Speaker Paul Ryan (R-Wisconsin) said Thursday he is "not ready" to throw his support behind Donald Trump. Ryan, who will serve as chairman of the Republican National Convention in July, says he wants Trump to unify "all wings of the Republican Party and the conservative movement" before he is ready to support him. CBS News senior political editor Steve Chaggaris joins Vladimir Duthiers to discuss.

• May 5, 2016
• 13:14

Although Trump may have the GOP nomination nearly locked up, on the Democratic side Hillary Clinton continues to fight for her spot in the general election

Although Trump may have the GOP nomination nearly locked up, on the Democratic side Hillary Clinton continues to fight for her spot in the general election. Slate chief political correspondent Jamelle Bouie and former political reporter Erin McPike join CBSN to discuss.

• May 5, 2016
• 06:34

After a fractured GOP primary season, Donald Trump must now try to unify the Republican party as the presumptive nominee

After a fractured GOP primary season, Donald Trump must now try to unify the Republican party as the presumptive nominee. Slate chief political correspondent Jamelle Bouie and former political reporter Erin McPike join CBSN to discuss.

• May 5, 2016
• 04:35

After Donald Trump's rivals dropped out, leaving him as the presumptive GOP nominee, the nomination fight continues on the Democratic side

After Donald Trump's rivals dropped out, leaving him as the presumptive GOP nominee, the nomination fight continues on the Democratic side. Bernie Sanders has vowed to stay in the race until the very end. What does the Vermont senator need to do to beat Hillary Clinton? CBS News congressional correspondent Nancy Cordes joins CBSN to discuss.

• May 5, 2016
• 06:15

Mark Leibovich, New York Times Magazine's chief national correspondent, has covered several candidates on the 2016 campaign trail

Mark Leibovich, New York Times Magazine's chief national correspondent, has covered several candidates on the 2016 campaign trail including Donald Trump. Leibovich joins "CBS This Morning" to discuss Trump's efforts to unite the Republican Party after his last-standing rival, John Kasich, dropped out of the race Wednesday.

• May 5, 2016
• 03:22

The full episode of the CBS Evening News from the May 4, 2016 edition

The Republican race began with a gaggle of 17 candidates, and Donald Trump is the last one standing; the Pentagon says the Navy SEAL who was killed in Iraq this week was part of a quick reaction force assigned to protect American military advisers

• May 4, 2016
• 20:40

With Donald Trump all but locking up his spot on the ballot in November, what happens next in the campaign?

With Donald Trump all but locking up his spot on the ballot in November, what happens next in the campaign? Nancy Cordes, Major Garrett and "Face the Nation" host John Dickerson offer up their thoughts.

• May 4, 2016
• 03:23

The Republican race began with a gaggle of 17 candidates, and Donald Trump is the last one standing

The Republican race began with a gaggle of 17 candidates, and Donald Trump is the last one standing. Here's a look back at the grueling campaign.

• May 4, 2016
• 02:09

Despite a dwindling statistical chance of winning the nomination, Sen. Bernie Sanders tells "CBS Evening News" anchor Scott Pelley he will "absolutely" stay in the race until the Democratic convention

Despite a dwindling statistical chance of winning the nomination, Sen. Bernie Sanders tells "CBS Evening News" anchor Scott Pelley he will "absolutely" stay in the race until the Democratic convention.

• May 4, 2016
• 02:31

Hillary Clinton has more than 90 percent of the delegates needed to clinch the Democratic nomination; and Bernie Sanders' win in Indiana did little to slow her momentum

Hillary Clinton has more than 90 percent of the delegates needed to clinch the Democratic nomination; and Bernie Sanders' win in Indiana did little to slow her momentum. But in an interview with "CBS Evening News" anchor Scott Pelley, Sanders gave his word that he will not drop out before the Democratic convention.

• May 4, 2016
• 00:52

After a crushing loss in Indiana, Ted Cruz suspended his campaign and now John Kasich is expected to do the same

After a crushing loss in Indiana, Ted Cruz suspended his campaign and now John Kasich is expected to do the same. This makes Donald Trump the presumptive GOP nominee. CBS News chief White House correspondent Major Garrett and Politico's Eli Stokols join CBSN to discuss.

• May 4, 2016
• 07:58

Democratic underdog Bernie Sanders isn't backing out of the race, forcing Hillary Clinton to work harder for the 2,383 delegates needed for the presidential nomination

Democratic underdog Bernie Sanders isn't backing out of the race, forcing Hillary Clinton to work harder for the 2,383 delegates needed for the presidential nomination. CBSN's Josh Elliott discusses with CBS News senior political editor Steve Chaggaris and The Wall Street Journal's Colleen Nelson.

• May 4, 2016
• 08:53

"Face The Nation" moderator John Dickerson breaks down Hillary Clinton's obstacle before likely facing Donald Trump in a general election: Bernie Sanders.

"Face The Nation" moderator John Dickerson breaks down Hillary Clinton's obstacle before likely facing Donald Trump in a general election: Bernie Sanders.

• May 4, 2016
• 02:05

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