Kentucky Attorney General Jack Conway (D) won by a thin margin and will face Rand PaulRandal (Rand) Howard PaulNSA spying program overcomes key Senate hurdle Fix what we’ve got and make Medicare right this year Despite amnesty, DACA bill favors American wage-earners MORE (R) in November.

Kentucky Attorney General Jack Conway snagged the Democratic nomination for Senate on Tuesday by a thin margin.

Conway bested Lt. Gov. Dan Mongiardo (D) by what appeared to be a scant one percent, sending the attorney general to a fall matchup against physician Rand Paul (R).

44 percent of Bluegrass Democrats chose Conway and 43 percent backed Mongiardo, according to tallies, with 98 percent of precincts reporting. Three other Democrats in the race polled in the single digits.

Roughly 7,000 votes separated the two Democrats, a thin margin which held up the time of the race being called, while Paul was recognized as the GOP nominee much earlier in the evening.

Democrats have hopes that Conway will take over the seat after the outgoing Sen. Jim Bunning (R-Ky.) retires at the end of his term next year.

Democratic Senatorial Campaign Committee (DSCC) Chairman Robert MenendezRobert (Bob) MenendezCongress must provide flexible funding for owners of repeatedly flooded properties Senate ethics panel resumes Menendez probe after judge declares mistrial Judge declares mistrial in Menendez bribery case MORE (D-N.J.) pointed to increased Democratic inroads in state elections, especially in the most recent reelection races of Bunning and Senate Minority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellSessions: 'We should be like Canada' in how we take in immigrants NSA spying program overcomes key Senate hurdle Overnight Finance: Lawmakers see shutdown odds rising | Trump calls for looser rules for bank loans | Consumer bureau moves to revise payday lending rule | Trump warns China on trade deficit MORE (R-Ky.).

"In 2010, this seat will be equally competitive," Menendez wrote in a memo released Tuesday evening. "Republicans nominated a very problematic candidate whose irrational policy positions generate national headlines, but hurt the people of Kentucky."

"Conway was the choice candidate of the campaign strategists at the DSCC — despite the fact that he has only won a single race during his career against an extremely weak opponent," National Republican Senatorial Committee (NRSC) Chairman John CornynJohn CornynMcCarthy: ‘No deadline on DACA’ NSA spying program overcomes key Senate hurdle Hoyer suggests Dems won't support spending bill without DACA fix MORE (Texas) said in a memo of his own.

Most political observers expect the race to be a toss-up.