Traditional liberals exist, but they are cowed by the authoritarian liberals, social justice warriors, who spout the same language of empathy and care that liberals use as the measure of morality while demanding oppression of others.
And because liberals and SJWs share the same general social trait of openness and lack of boundaries, the classic liberals are usually unable to argue against SJW demands for censorship, segregation or mob action against targets - because it is in the name of defending the cry-bully and/or its oppressed group.
Traditional liberals do exist but they are older (over 60 usually) and are not really aware their party left them long ago.
There are no traditional liberal politicians to my knowledge though. The closest one is a fraud and claims to be a socialist; Bernie Sanders. A true socialist would not own 3 nice homes all paid for. The latest vacation home on a lake somewhere is believed to be his prize for playing nice during the election. A true socialist would have been happy with a pat on the back, a few kind words, and maybe a Kewpie Doll.