ABC News' Amy Walter reports: A topsy-turvy political primary season took a more predictable turn today as establishment frontrunners easily won primary contests in Louisiana and West Virginia.
It's important to note that the frontrunners had decided financial advantages. And, unlike Nevada Republican Sharron Angle or Alaska Republican Joe Miller, the underfunded challengers in West Virginia and Louisiana did not get support from outside groups.
In Louisiana, Sen. David Vitter proved that his past scandals haven't taken a toll on his standing with Republican voters. With 81 percent of the vote reporting, Vitter led his three-way primary with 88 percent. In 2008, Vitter admitted to having visited a prostitute while in Congress. And, more recently, as ABC reported first, Vitter came under fire from women's groups for continuing to employ a staffer who pled guilty to abusing his girlfriend.
Vitter will now face Rep. Charlie Melancon, who easily won the three-way Democratic primary.
In the West Virginia special election primary, Democrat Gov. Joe Manchin sailed through the primary as well. With 98 percent reporting, Manchin had 73 percent of the vote.
Manchin will face businessman and '06 Republican nominee John Raese in the Nov. 2 special election to replace the late Sen. Robert Byrd.
Both Vitter and Manchin are favored to win this November.