Trump's lead in New Hampshire has narrowed since Iowa.
The White House contenders are shopping rival plans that would make college more affordable.
In their first presidential debate since President Obama announced he would take executive action to promote gun control, the Republican candidates voiced their opposition.
In their sixth debate, expect the Republicans to discuss the economy, immigration and North Korea.
A Reuters poll found that half of Americans approve of President Obama's moves on gun control.
Fox Business Network kept its November 10 debate more about business and less about "gotcha" moments.
Republican National Committee confirms the upcoming presidential debate will be two hours.
The senator takes on President Obama but goes easy on fellow Republicans.
"I do not believe the president loves America," Politico quotes Giuliani as saying Wednesday.
Current and former Republican governors, senators and congresspeople will ziz-zag across the nation this weekend to lay the groundwork for future presidential campaigns.
Three senators and two congressmen delivered rebuttals to President Obama's speech.
Rubio, Paul and Cruz hope to please neo-Con hawks and isolationist doves all at the same time.