Do Americans think Obama or Vladimir Putin is the stronger leader?

American voters are evenly divided over whether President Obama or Russian President Vladimir Putin is the stronger leader as the two face off over the ongoing crisis in Ukraine, according to a new Quinnipiac University poll out Wednesday.

That's not a great assessment for Obama, given that 80 percent of respondents say Putin is not honest and trustworthy, and just 48 percent believe he is mentally stable. On the other hand, 57 percent say he has strong leadership qualities.

Mr. Obama's approval rating on foreign policy matters is not in good shape, with just 39 percent approving and 55 percent disapproving of his performance. His overall job approval stands at 42 percent, up two percent since late January.

On Ukraine specifically, 41 percent of voters approve of how the president has handled the crisis and 47 percent disapprove. The numbers are comparable to a CBS News poll conducted at the end of March that found just 38 percent of Americans approve of the president's handling of the Ukraine crisis and 46 percent disapprove.

Eight in 10 voters say they are "very" or "somewhat" concerned the conflict could lead to a larger conflict in the region, and more than half (56 percent) say it could lead to a renewal of the Cold War. Along those lines, just 54 percent of voters say the U.S. should not get overly involved in the crisis, but 39 percent say it is necessary to take a firm stand.