how many states allow early voting
Early voting is similar to  no-excuse  absentee voting. In many U.S. states the period varies between four and fifty days prior to Election Day. Early voting in person is allowed with no excuse required in 33 U.S. states and in the District of Columbia (D.C.). Absentee voting by mail with no excuse is allowed in 27 states and D.C.. In 20 states, an excuse is required. No-excuse permanent absentee voting is allowed in 6 states and in D.C..