Republican senators are threatening to codify sanctions against the Kremlin amid speculation that President Donald Trump will ease the sanctions and refusal from the Trump team to commit to maintaining or increasing them.

“For the sake of America’s national security and that of our allies, I hope President Trump will put an end to this speculation and reject such a reckless course,” Arizona senator John McCain said in a statement. “If he does not, I will work with my colleagues to codify sanctions against Russia into law.”