Democratic.
Ohio is a swing state, and has often decided the result of elections. In 2004, George Bush won Ohio by a margin of 120,000. Had 60,000 Bush voters voted for Kerry instead, John Kerry would have carried the State and won the electoral vote.
In 2010, Ohio elected a Republican U. S. Senator and 13 Republican and 5 Democratic U. S. Representatives. In 2008, Ohio cast all 20 of its electoral votes for Barack Obama and Joe Biden. They also elected 10 Democratic and 8 Republican U. S. Representatives. In 2006, Ohio elected a Democratic U. S. Senator and 11 Republican and 7 Democratic U. S. Representatives. In 2004, Ohio cast all 20 of its electoral votes for George W. Bush and Dick Cheney. They also elected a Republican U. S. Senator and 12 Republican and 6 Democratic U. S. Representatives.
John Glenn served as a Democratic U.S. Senator from Ohio.
Yes, partly because Ohio has a mix of Republican and Democratic voters. A good example is the mostly Democratic city of Columbus, which is divided between three separate Congressional Districts, each having a mostly Republican population.
Ohio is a critical state in a Presidential election, since it acts as a reliable bellwether for those elections for the Republican candidate. No Republican has ever won the Presidency without the state of Ohio, and only James G. Blaine (1884), Thomas Dewey (1944), and Richard Nixon (1960 were Republicans who won Ohio but lost the Presidency.
He is a Democrat.
Ohio is considered a "battleground state". This means that Ohio can swing democrat or republican depending on the actual candidates and issues.
Yes, the state of Ohio's party platform does include marriage equality.
Hillary Clinton won the Democratic primary election in Ohio on March 4, 2008.
John Glenn served as a Democratic Party U.S. Senator from Ohio December 24, 1974 - January 3, 1999.
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Ohio Republican Party was created on 1852-02-13.