The decision by Republican campaign committees to withhold ad dollars from Twitter could have a tangible effect.

The Republican National Committee, President Donald Trump’s reelection campaign as well as the House and Senate GOP campaign committees took that step in response to the social media platform’s temporary lockout of Senate Majority Leader Mitch McConnell’s campaign account.

[McConnell fractures shoulder at home in Kentucky]

“Twitter has a clear bias against conservatives and Republicans. The hashtag associated the disgusting threats against Mitch McConnell was allowed to trend for an entire day. But McConnell’s posting of video of the threats themselves got his own account suspended. It is ludicrous bias in the extreme,” Trump campaign spokesman Tim Murtaugh said in a statement.