Vote by mail “has been a matter of controversy” after Massachusetts sued the Trump administration over an executive order that directed the USPS to not transmit mail-in or absentee ballots from anyone not on a state-specified voter participation list.”With 600,000 ballots on the street, I think it’s important for people to vote them and send them back,” Secretary of State William Galvin said, calling the figure average and declaring that his “strong suggestion” is that mail-in voters return their ballots “immediately.”