President Donald Trump on Monday endorsed three Republican primary candidates in three separate congressional districts in Nevada's House primary races, as well as a candidate in the attorney general primary. 

In a series of posts on Truth Social, Trump endorsed Marty O'Donnel in the state's 3rd Congressional District, David Flippo in the state's 2nd Congressional District, and Carrie Buck in the state's 1st Congressional District. 

All three candidates face a number of challengers for the Republican nomination. 

Trump also endorsed Adriana Guzmán Fralick in the Attorney General primary. She has one challenger, Danny Tarkanian, in that race.