Will Trump ask former top GOP rival Nikki Haley to join him on campaign trail during final stretch?

As she faces off against former President Trump in the race for the White House, Vice President Kamala Harris is making a full court press to land the support of disaffected Republicans.

While Trump retains vast sway over the GOP, even a small sliver of Republicans supporting Harris could make an important impact in what will likely be a race within the margins in the key battleground states.

Many of those Republican voters Harris is targeting backed former U.N. ambassador and former South Carolina Gov. Nikki Haley, who was Trump's final remaining rival earlier this year in the GOP presidential primaries.

HARRIS-TRUMP SHOWDOWN: VICE PRESIDENT PICKS UP THE PACE ON THE TRAIL

Haley eventually supported Trump a couple of months after ending her White House bid, but with one week to go until Election Day, the GOP presidential nomination runner-up has yet to join Trump on the campaign trail.

Sources confirmed to Fox News a week and a half ago that Haley, who will be a live guest on "Special Report with Bret Baier" at 6 p.m. ET on the Fox News Channel on Tuesday, has been in talks to join Trump on the campaign trail.

Haley gave Trump's team a list of dates on which she would be available to join the former president.