Republican

The Associated Press has called Kansas and Maine for Cruz. Meanwhile, Democrats are caucusing in Kansas and Nebraska, and both parties are voting in Louisiana. Republicans are caucusing in Kentucky.

Republicans will be looking at the southern part of the state, while Democrats will be fighting it out in college communities and blue-collar towns.

Republican establishment choice Jeb Bush was once the candidate to beat. No more: The success of Ted Cruz, Donald Trump and Marco Rubio in the Iowa caucuses puts new pressure on the party mainstream.

GOP presidential candidates may be spending most of their time in Iowa and New Hampshire right now, but delegate-rich Texas will be the far more consequential state in the Republican primary.

A political action committee backing Chris Christie is using mobile check-ins at campaign events for all GOP candidates, gathering data that one strategist calls a "building block" of modern politics.

Marco Rubio emerged as a target of both Ted Cruz and Rand Paul while Jeb Bush finally found his footing with landing attacking against Donald Trump.

The former Transportation Secretary's new book bemoans the end of bipartisanship. Is his vision of compromise a pipe dream?

A Republican will be governor of Kentucky for only the second time in 40 years. Democrats blamed "Trump-mania." Conservatives helped block pot legalization in Ohio and repealed an LGBT law in Houston.

There are more Catholic Republicans than ever running for president, but not all have embraced Pope Francis' more liberal statements and theology.

Bush's tax plan tries to lower tax rates for some of the rich and for corporations, but also sticks it to hedge-fund managers and gives some relief to low-income earners.

The GOP front-runner is happy to pile on criticisms and jabs at his fellow rivals, but he gets testy if you criticize him.