The Supreme Court has ruled that mail-in ballots received after Election Day, but dispatched before it, can be counted in some states, prompting a swift and critical response from President Trump. Trump alleges the decision will facilitate illegal voting, reiterating unsubstantiated claims of widespread voter fraud. He has called on Congress to enact election reform measures in response to the ruling. The decision impacts states with differing rules regarding ballot receipt deadlines. Legal challenges surrounding mail-in voting have been prevalent leading up to and following the 2020 election, and this ruling is expected to further fuel political debate. The specifics of implementation will vary by state, potentially influencing close election outcomes. The ruling does not establish a nationwide standard for late-arriving ballots.