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WASHINGTON (AP) — Texas Sen. Ted Cruz is worth between $2 million and $4.5 million, a total aided by the roughly $319,000 advance the Republican presidential candidate received to write his best-selling memoir, according to a financial disclosure report released Monday.

The report shows Cruz's overall wealth only increased slightly from his most recent disclosure, which he filed in 2013 as a member of the Senate.

The main change was that Cruz has paid down a mortgage valued from $250,000 to $500,000. Cruz owns a condominium in the Houston area, which he and his wife bought for more than $800,000 in 2008.

Cruz's disclosure said he received a payment of $318,750 in June 2014 for his book, "A Time for Truth." Cruz also reported making royalties as of July 30 of between $100,000 and $1 million on the book.

The report filed with the Federal Election Commission provides estimates of dollar amounts in these wide ranges.

Along with his $174,000 annual U.S. Senate salary, Cruz's income comes mostly from an assortment of mutual funds, stocks and securities.

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