Paul Ryan will seek to become the next chairman of the Ways and Means Committee, a move that would bring instant star power to the cause of tax reform while complicating his presidential ambitions.

The House Budget Committee chairman intends to replace Chairman Dave Camp (R-Mich.) when term-limit restrictions force Camp to step down in 2015, Ryan told The Wall Street Journal. …

“He’s got to pick one — he can’t be Ways and Means chairman and then run for president,” said Stan Collender, a former congressional budget aide. “They’re two different constituencies.” …

He would have to leapfrog a pair of more senior Republicans on the panel, Reps. Kevin Brady and Sam Johnson, both of Texas, to take the committee post.