WASHINGTON — Democratic Sen. Joe Manchin of West Virginia says he's unsure whether he'll vote for President Barack Obama or likely Republican nominee Mitt Romney.

In a statement Friday, Manchin said he has real differences with both Obama and Romney. He also said many West Virginians believe the last 3 ½ years have not been good.

One of the more moderate Senate Democrats, Manchin is seeking re-election this year in a state Obama lost to Republican Sen. John McCain, 56-43 percent, in 2008. Obama fared worse in the Democratic primary against Hillary Rodham Clinton, losing 67-26 percent.

Manchin, the former governor who won the Senate seat in 2010, remains popular in West Virginia.

He told the National Journal that he will look at the options for president.