The leftists who use vicious smears to win in politics have had a terrible run of public losses since Donald J. Trump was elected president. WIll they learn?

Three big smears have been launched by the left to destroy their targets and thankfully all have basically failed.

The big lies of the left have been:

1. Donald Trump is a Russian agent.

2. Donald Trump's nominee to the Supreme Court is a gang rapist.

3. Donald Trump's supporters attacked Jussie Smollett.

Although all three smears have been exposed, there was significant damage done to America's national prestige and to our political culture.

Every time the Democrats in Congress falsely claimed Donald Trump was a Russian-controlled asset, it terrified the people that believed them. Those lies also did the work of Putin and his thugs in the Kremlin by building up their reputation in the world. Candidate Trump was vindicated by the voters and President Trump was vindicated by the Mueller investigation.

Earlier in the year, the left wing told fantastic stories about Judge Brett Kavanaugh in an attempt to stop him from being confirmed by the Senate to the Supreme Court. They spread stories that as a high school student he organized gang rape parties in the wealthy suburbs of Washington, D.C. Teenage Kavanaugh drugged young girls and then raped them as a team sport and yet nobody ever found out about it during any of his previous FBI background checks. It was a ridiculous story, but the left dug in and their media allies ran with it. Kavanaugh was confirmed by the U.S. Senate and will spend the rest of his long life on the Supreme Court.

Jussie Smollett concocted a story about being attacked by supporters of Donald Trump because he is black and gay. The story cast a shadow on supporters of President Trump and the media lapped it up. Now the story has fallen apart and it is Clinton and Obama veteran Mayor Rahm Emmanuel who is out to prove his city isn't the place the left wing wants to claim it is.

The biggest victims of these smears are the people who believed them and act on them. The leftists are purposely misleading the very people who trust them. Will those people learn from their errors?

Chris McCarthy is the host of The Chris McCarthy Show on 1420 WBSM New Bedford. He can be heard weekdays from 10 a.m. to noon. Contact him at chris.mccarthy@townsquaremedia.com and follow him on Twitter @Chris_topher_Mc. The opinions expressed in this commentary are solely those of the author.