Via American Action News:

Governor Brian Kemp (R-GA) is expected to appoint business executive Katie Loeffler to fill Georgia's soon-to-be-vacant Senate seat.

That state's senior Senator Johnny Isakson is resigning on December 31, due to his worsening Parkinson's.

Loeffler's appointment could affect Kemp's relationship with the White House, given the president prefers Georgia Rep. Doug Collins, an unabashed Trump ally. 

At least one of Trump's congressional supporters has already lashed out:
  Per National Review:
 

Loeffler wrote in her application to Kemp to fill the Senate vacancy that “If chosen, I will stand with President Trump, Senator Perdue, and you to Keep America Great.”

Kemp and Loeffler met with Trump in November to discuss her possible candidacy. During the meeting, Trump pointed out that Loeffler had not backed his 2016 presidential campaign, and suggested that Loeffler did not have the political credentials for the position. Loeffler currently runs a bitcoin firm and is a co-owner of the Atlanta WNBA basketball team.

 

However, Kemp does not appear to be backing down. Officials close to Kemp say he believes Loeffler will improve the Republican party’s appeal to suburban and women voters, many of whom have slid leftward after Trump’s election.

In an interview on Fox News Sunday, Collins did not rule out the possibility that he would run for the Senate seat in 2020 even if Loeffler is appointed to fill the vacancy.