Poll: Ernst gains 7-point edge in Iowa
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Iowa state Sen. Joni ErnstJoni Kay ErnstAgricultural trade demands investment in MAP and FMD GOP senator: Trump's rhetoric not to blame for North Korea nuclear threat Rep. Sinema to challenge Flake for Senate seat MORE (R) leads Rep. Bruce BraleyBruce BraleyOPINION | Tax reform, not Trump-McConnell feuds, will make 2018 a win for GOP Ten years later, House Dems reunite and look forward Trump: Ernst wanted 'more seasoning' before entertaining VP offer 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."

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.