The candidate Republicans are most worried about can also draw out the GOP base and donors.
But "I don’t think he could ever be elected president," Rep. John Yarmuth (D-Ky.) added.
"Do I support the Supreme Court decision in the Hobby Lobby case? I do," he said.
The potential GOP presidential hopeful outlined efforts needed to curb illegal immigration.
Christie is scheduled to speak at three fundraisers.
Supporters launch a movement pressing her to run for president in 2016.
Jon Stewart couldn’t get Hillary Clinton to declare her candidacy for president on his show.
Former second lady said there are different levels of enthusiasm to get involved in politics.
Tuesday will be Clinton’s third appearance, but first since running for president in 2008.
The governor is asking if "our country can do better and whether I can help us do better."