Poll: Ernst gains 7-point edge in Iowa
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Iowa state Sen. Joni ErnstJoni Kay ErnstOvernight Defense: Pentagon details military construction projects getting .2B restored from wall funds | Biden chooses former commander to lead Navy | Bill seeks to boost visa program for Afghans who helped US Meghan McCain: Harris 'sounded like a moron' discussing immigration Senate bill would add visas, remove hurdles to program for Afghans who helped US MORE (R) leads Rep. Bruce BraleyBruce Lowell BraleyThe Memo: Trump attacks on Harris risk backfiring 2020 caucuses pose biggest challenge yet for Iowa's top pollster OPINION | Tax reform, not Trump-McConnell feuds, will make 2018 a win for GOP MORE (D) by seven percentage points in a new poll from The Des Moines Register, 

With only three days until Election Day, Ernst has 51 percent support among likely voters to Braley's 44 percent.

J. Ann Selzer, who conducted the poll for the paper, said Saturday that "this race looks like it's been decided."

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Ernst, a state senator, is in a tight race against Braley for the seat now held by retiring Sen. Tom Harkin, a Democrat.

She has been ahead in recent polls while Braley has trailed behind since an early October Iowa Poll, where he dropped from 46 percent to 44 percent and Ernst increased her share from 47 percent to 51 percent now.

The poll of 701 likely voters in the 2014 midterm election was conducted Oct. 28-31 by Selzer & Co. of Des Moines and has a margin of error of plus or minus 3.7 percentage points.