Trump retakes Iowa lead, poll shows

Donald Trump has retaken his lead atop the GOP presidential field in Iowa, according to a new poll released Sunday on CBS’s “Face the Nation.”

Trump is polling at 30 percent in the all-important-early voting state, and enjoys a 9-percentage-point lead over rival Sen. Ted Cruz (R-Texas) in the CBS News 2016 “Battleground Tracker.”

{mosads}The results come several weeks after the same poll found Trump tied at 27 percent with retired neurosurgeon Ben Carson. Carson has dropped to 19 percent in the new poll.  

Cruz picked up some of Carson’s lost support. His 21 percent in the latest poll is a 9-percentage-point boost from that late October poll, which showed Trump and Carson in a dead heat.

According to CBS, Cruz took some key voting groups away from Carson, including evangelicals, Tea Party supporters and older voters.

The new poll is one of several in recent days that have shown somewhat of a resurgence for Trump, who gradually lost ground to Carson throughout October.

Rounding out the top of the Iowa field were Sen. Marco Rubio (R-Fla.) at 11 percent, former Florida Gov. Jeb Bush at 5 percent and former Hewlett-Packard CEO Carly Fiorina at 4 percent.