Google has chosen to pause political ads for a minimum of a week beginning on January 14. Google plans to monitor the situation throughout the week and see where things go after inauguration, were they will probably reassess the situation and see if they need to extend the temporary ban even further.
The ads that Google is putting on hold for now are ones run by news organizations and merchandisers.
According to Google:
“Given the events of the last week, we are extremely vigilant about enforcing on any ads that might reasonably be construed as crossing this line.” Along with preventing misinformation around the current volatile political climate, the company has policies around blocking ads that encourage hate and violence.”
Source – Search Engine Land