From Newsweek:
Democrat Senator Richard Blumenthal has been one of Trump’s sternest critics, and in typical style, the president has responded with attacks of his own.
Reacting to Blumenthal’s allegations of collusion between the Trump camp and Russia, President Trump today unleashed a new tirade against the Connecticut senator.
“Interesting to watch Senator Richard Blumenthal of Connecticut talking about hoax Russian collusion when he was a phony Vietnam con artist!,” tweeted Trump.