President Donald Trump put himself in to a high-stakes election in Ohio's 12 district.<br />He turned the elections into new test of his tactics and sway with Republican voters.<br />Republicans are scrambling to avoid a defeat in a seat that the party has held for decades.<br />Trump has backed Republican Troy Balderson, who is facing Democrat Danny O'Conner.<br />A win for Democrats here on Tuesday would signal further danger for Republicans in the fall. <br />
