Reynold said Tuesday that he will not seek re-election in 2018, as he has said he will retire after the 2018 elections.
He made the announcement while speaking to reporters at the farm facility in Missouri.
He will be 81 next year.
“I want to thank my family and friends for everything that they’ve done for me and my family,” he said.
“As I get older, I’m sure I’ll have more opportunities to spend more time with them.
I’m just happy to be here with them and let them know I’m still around.”
Reynlds has long been an outspoken critic of President Donald Trump, who has called him a liar and a “liar.”
He has said that Trump had the best of intentions, but the farm he manages is not the best place for a president who doesn’t want to work with farmers.
He has criticized Trump’s decision to allow some immigrants to stay in the country.
He said he plans to visit the farm when he is back.
He also announced that he plans on going to the White House to speak to President Donald J. Trump.
“My goal is to be a good neighbor to the people of my state, and I’m hoping to see that happen as I start my Senate career,” Reynond said.