President Donald Trump on Monday issued a warning to Sen. Tom Cotton (R-Ark.) hours after the Arkansas senator said he wouldn’t join an effort to object to electoral votes on Jan. 6. “How can you certify an election when the numbers being certified are verifiably WRONG,” Trump asked on Twitter, suggesting that he will make assertions about “the real numbers tonight during my speech” in Georgia to support Sens. Kelly Loeffler (R-Ga.) and David Perdue (R-Ga.) in their election fight. The president then cautioned Cotton about his political future. “Republicans have pluses & minuses, but one thing is sure, THEY NEVER FORGET!” he wrote to him on Twitter. Trump was reacting to Cotton’s stance on not joining a growing group of Republican lawmakers who would oppose the electoral results during the Joint Session of Congress on Wednesday. About a dozen senators led by Sens. Josh Hawley (R-Mo.) and Ted Cruz (R-Texas), …