"The committee's findings are a more in-depth look at the interference than Mueller's investigation, but the findings run parallel to the conclusions of Mueller's probe, which found overwhelming evidence of Russia's efforts to interfere in the election through disinformation and cyber campaigns but a lack of sufficient evidence that the Trump campaign conspired with the Kremlin to impact the outcome of the 2016 election."
Your own source literally disproves what you're claiming.
I'll say it again, from your source:
"lack of sufficient evidence that the Trump campaign conspired with the Kremlin to impact the outcome of the 2016 election."