Around 2014, a new political candidate entered the scene. Commenters and the news media at the time widely reported something remarkable and new about this candidate: he readily endorsed political violence and showed a continual pattern of escalation, never taking an off-ramp to lower the temperature in domestic politics. Over the years research has shown that the rhetoric of this candidate has materially contributed to political violence in the US. [0]

This candidate was later elected to office and in the time since has shown a continual pattern of endorsing violence. He has endorsed violent actions, told reactionary extremist groups to "stand back and stand by", defended state violence against protestors and immigrants, pardoned thousands of people who were convicted of political violence and an attempted insurrection, and recently started a war before threatening to destroy an entire civilization.

Yes. Yes the "temperature" has gone up. People have been talking about this WIDELY, for years now.

[0] https://www.jstor.org/stable/26940036?seq=1