Republican debate: Marco Rubio finds his fire (CNN)
Rubio ambushes Trump at GOP debate (Politico)
CNN struggles to contain debate fireworks (Politico)
Romney: ‘No legit reason’ Trump can’t release tax returns (The Hill)
Rubio, Cruz throw everything they can at front-runner Trump (The Hill)
Abortion providers reveal their Supreme Court strategy ahead of arguments (Houston Chronicle)
A self-described unifier, Kasich not always Mr. Nice in Ohio (Washington Post)
This is the closest thing we’ve ever have to a Hillary Clinton political manifesto (Washington Post)