Republican candidates gear up for last-minute messaging in Iowa

Republican candidates are preparing their last week of appearances before the Iowa caucuses next week.

The political clock is ticking with Iowa caucuses a week away. 

Former President Donald Trump is the party favorite. According to a Morning Consult poll he leads Nikki Haley, who is in the number two spot, by more than 40 percentage points. However, new polls signal some hope for the former U.N. ambassador.

One from CNN found roughly 39% of likely Republican primary voters would vote for Trump, while 32% said they would vote for Haley.

Support for Haley rose 12 percentage points since CNN's last poll in November.

Candidates are preparing their last week of appearances before the caucus.