?When I have strong disagreements, I?m going to express them strongly?: How Sen. Corker became the president?s main critic

Republican Bob Corker of Tennessee — who has tweeted that the White House is an "adult day care center" — has his party on edge, wondering where and when he will strike again and what it will mean: for the fragile GOP alliance, for the party's languishing agenda and for Corker himself, as he gears up for a final year in the Senate before retirement.
Source