MO-Sen: GOP brings in the big guns for final push to beat Sen. Claire McCaskill

Missouri's U.S. Senate race between Democratic Sen. Claire McCaskill and Republican challenger Josh Hawley has been too close to call for months, according to the polls.

But the GOP isn't messing around in its efforts to unseat the two-term incumbent and have enlisted a few conservative heavyweights to join President Donald Trump in campaigning for Hawley on the eve of Election Day.

What are the details?

According to The Hill, Rush Limbaugh and Sean Hannity will be in Cape Girardeau, Missouri, Monday night to help President Trump rally the base for Hawley. Cape Girardeau is Limbaugh's hometown, and a Republican stronghold in mostly red Missouri — the president won Cape Girardeau County by more than 50 percentage points in 2016.

President Trump's campaign issued an announcement saying, "We're glad to welcome Cape Girardeau native Rush Limbaugh and Sean Hannity as special guests to this final stop on the tour where President Trump will make his case to the American people to support GOP candidates on Election Day in order to continue our great American comeback under his leadership."

Hannity will be broadcasting his Fox News show from the location and interviewing President Trump, but it has not been confirmed that the host will appear on stage at the event.

Anything else?

The rally will mark the second time Trump has visited the state in recent days. On Thursday, the POTUS flew into Columbia, Missouri, and spoke to a crowd in the left-leaning city's airport hangar, where thousands stood out in the rain for hours — some walking for miles.

Parking was maxed out by early afternoon for the evening rally, causing local authorities to advise attendees to only bring four-wheel-drive vehicles to park in the grass or to grab a taxi.

McCaskill and Hawley have been neck-and-neck in the polls for months, but Hawley appears to have finally edged ahead among voters in the state that Trump won by nearly 20 points in 2016.

The Trafalgar Group released survey results Sunday that indicate the Republican candidate has the support of 48.3 percent of Missouri voters, to McCaskill's 44.4 percent. The margin of error is 2.3 percentage points.