Eliminating the deadline and allowing same-day registration would boost voter turnout among underrepresented groups and increase overall voting rates, according to Demos, a nonpartisan think tank. Its researchers found that voter turnouts would have increased by 12.3 percent for 18- to 25-year-olds, 11 percent for Latinos, 8.7 percent for African-Americans and 6.8 percent overall if New York State had same-day registration during the 2000 election.