The Supreme Court on Tuesday declined to stop a COVID-19 vaccine mandate for Maine healthcare workers, continuing a trend where the high court has declined to hear challenges in other regions. Justice Stephen Breyer, who rejected the emergency appeal, left the door open for opponents of vaccine mandates to try again.  Maine will now start enforcing its vaccine mandate on Oct. 29. Maine Gov. Janet Mills, a Democrat, implemented the order requiring healthcare workers and nursing home staff to get the vaccine or risk losing their employment. Breyer wrote that the Liberty Counsel, the organization that sued Mills over her mandate, can seek another emergency injunction if the U.S. Circuit Court of Appeals rules in the state’s favor or doesn’t make a decision by Oct. 29. Unlike other states, Mills’s order does not allow for religious exemptions, only medical exemptions. The Liberty Council filed a lawsuit on behalf of nurses …