Senator Roberts has been on both sides of the issue regarding legalizing marijuana. Pre-2015, he stated that he would support the legalization movement. More recently, he has come out against legalizing marijuana at a federal level.
"That's not a federal issue," Roberts said. "That's a state issue. If you want to get a Rocky Mountain high, go west. That should be for the Kansas legislature and the governor to decide, not federally."
"You know, we've had a federal policy in this country since the Nixon administration that doesn't seem to be working, he said. "We've spent over $1 trillion on it. With that said, as the senator has mentioned, we do have states that have started to work with different policies as it relates to legalization. I think it would be prudent for us to take a step back and watch what happens in those states before we determine how we want to change federal policy."
9/07/14
https://www.huffingtonpost.com/2014/09/07/pat-roberts-marijuana_n_5779794.html