St. Louis, MO (KTRS) Sen. Claire McCaskill says Russian hackers tried unsuccessfully to infiltrate her Senate computer network, raising questions about the extent to which Russia will try to interfere in the 2018 elections.

McCaskill, who is up for re-election this year, confirmed the attempted hack in the following statement on Thursday: “Russia continues to engage in cyber warfare against our democracy. I will continue to speak out and press to hold them accountable. While this attack was not successful, it is outrageous that they think they can get away with this. I will not be intimidated. I’ve said it before and I will say it again, Putin is a thug and a bully.”