Fresh off President Joe Biden’s endorsement to be his successor, Vice President Kamala Harris is working to shore up critical support in her bid to be the 47th president of the United States.

Harris has moved quickly to lock up the backing of critical power brokers in the Democratic Party, according to multiple reports that suggest she has eyed Capitol Hill leaders first. Perhaps most important of all, however, has been Harris’s support from governors who were as recently as Saturday rumored to be challengers for the Oval Office.