Vice President Kamala Harris is exploring her options for a running mate as she ascends to the top of the Democratic Party’s ticket, but three possibilities have already said they aren’t interested in joining her.

With President Joe Biden’s Sunday announcement to drop out and endorse Harris to replace him, Democrats are in a race to complete their presidential ticket a week after Republicans ended their monthslong search for former President Donald Trump’s running mate. While several Democrats have hinted at seeking a spot on the ticket, these three said they aren’t in contention.