"He didn't get away with anything yet", said McConnell, who turns 79 next Saturday and has led the Senate GOP since 2007.
"It's nearly like he has no choice but to continue to try to be in politics", she said.
"No president has ever gone through anything like it, and it continues because our opponents can not forget the nearly 75 million people, the highest number ever for a sitting president, who voted for us just a few short months ago".
"Our historic, patriotic and attractive movement to Make America Great Again has only just begun", he said.
In total 57 senators voted to convict Trump, with 43 opting to acquit, falling short of the two-thirds majority needed to find him guilty.
The five-day trial saw Democratic prosecutors argue - bolstered by dramatic video of the January 6 riot in which five people were killed - that Trump betrayed his oath by whipping up his supporters into storming Congress in a last-ditch attempt to cling to power.
A guilty vote by McConnell would have enraged numerous 74 million voters who backed Trump in November, a record for a GOP presidential candidate. His base, by all indications, is still largely intact.
Mr Trump thanked his lawyers and those who supported him in the House and Senate, saying they "stood proudly for the constitution we all revere and for the sacred legal principles at the heart of our country".
Trump did not emerge from this impeachment trial unscathed, however. But Willis spokesman Jeff DiSantis told The Associated Press that a call Trump made to Secretary of State Brad Raffensperger last month is "part of it". It may not cost him among the Republican rank and file, but independent voters - and moderates - are unlikely to forget. But after emergency consultations to avoid any hold-up, they changed their ruling to admit written statements only. Still, with seven Republicans joining all 50 Democrats in voting "guilty", the Senate issued an unmistakable bipartisan chorus of condemnation of the former president that could have political implications for a GOP conflicted over its future.
McConnell had signalled last month that he was open to finding Trump guilty, which in itself was an eye-opening signal of his alienation from the former president.
"McCarthy refuted that and told the president that these were Trump supporters", Ms Herrera-Beutler said. "That's when, according to McCarthy, the president said: 'Well, Kevin, I guess these people are more upset about the election than you are'".