LOUISVILLE — Former Marine pilot Amy McGrath overcame a bumpy Kentucky primary to win the Democratic U.S. Senate nomination Tuesday, fending off progressive Charles Booker to set up a bruising, big-spending showdown with Republican Senate Majority Leader Mitch McConnell.

Voting ended June 23, but it took a week until McGrath could be declared the winner due to the race’s tight margins and a deluge of mail-in ballots. The outcome seemed a certainty early in the campaign but became tenuous as Booker’s profile surged as the black state lawmaker highlighted protests against the deaths of African Americans in encounters with police. It was a narrow victory for McGrath. She outlasted Booker by 15,149 votes out of more than 544,000 votes cast.

Several other candidates attracted tens of thousands of votes. McConnell, a key ally to President Donald Trump, already breezed to victory in the GOP primary in his bid for a seventh term.

Kentucky switched to widespread absentee voting amid the coronavirus pandemic, and election officials needed days to count ballots. In Lexington, the state’s second-largest city, about 6,000 absentee ballots were thrown out on technicalities ranging from unsigned envelopes to detached security flaps, said Fayette County Clerk Don Blevins.

Since last summer, McConnell and McGrath had looked past their respective primaries to skirmish with each other. Those attacks will now intensify heading into the fall campaign.

Declaring victory, McGrath reached out to Booker’s supporters to try to unite the party for the challenge ahead against McConnell, who has dominated Kentucky’s political landscape for decades.

“There is far too much at stake,” McGrath said in a statement. “The differences that separate Democrats are nothing compared to the chasm that exists between us and the politics and actions of Mitch McConnell. He’s destroyed our institutions for far too long.”

McConnell’s campaign said McGrath’s narrow victory showed her candidacy is damaged heading into the general election. McConnell campaign spokeswoman Kate Cooksey portrayed McGrath as a “tool” for the national Democratic establishment and said the challenger was out of step with Kentucky with her support for abortion rights and “government-run health care.”

Booker conceded later in the day and called on Democrats to dedicate themselves “to the work of beating Mitch, so ... we can get him out of the way.” But his statement mentioned McGrath only briefly, focusing instead on his campaign for economic and racial justice.

From Wire reports

Several other candidates attracted tens of thousands of votes. McConnell, a key ally to President Donald Trump, already breezed to victory in the GOP primary in his bid for a seventh term.

Kentucky switched to widespread absentee voting amid the coronavirus pandemic, and election officials needed days to count ballots. In Lexington, the state’s second-largest city, about 6,000 absentee ballots were thrown out on technicalities ranging from unsigned envelopes to detached security flaps, said Fayette County Clerk Don Blevins.

Since last summer, McConnell and McGrath had looked past their respective primaries to skirmish with each other. Those attacks will now intensify heading into the fall campaign.

Declaring victory, McGrath reached out to Booker’s supporters to try to unite the party for the challenge ahead against McConnell, who has dominated Kentucky’s political landscape for decades.

“There is far too much at stake,” McGrath said in a statement. “The differences that separate Democrats are nothing compared to the chasm that exists between us and the politics and actions of Mitch McConnell. He’s destroyed our institutions for far too long.”

McConnell’s campaign said McGrath’s narrow victory showed her candidacy is damaged heading into the general election. McConnell campaign spokeswoman Kate Cooksey portrayed McGrath as a “tool” for the national Democratic establishment and said the challenger was out of step with Kentucky with her support for abortion rights and “government-run health care.”

Booker conceded later in the day and called on Democrats to dedicate themselves “to the work of beating Mitch, so ... we can get him out of the way.” But his statement mentioned McGrath only briefly, focusing instead on his campaign for economic and racial justice.

From Wire reports