By Amruta Khandekar and Noel Randewich (Reuters) – Wall Street climbed on Tuesday during voting in midterm elections that will determine control of the U.S. Congress, with investors betting on a political stalemate that could prevent major policy changes. It was the third straight day of gains on the U.S. stock market, leaving the Dow Jones Industrial Average down less than 10% year-to-date. Helping the blue-chip Dow, shares of drugmaker Amgen Inc climbed almost 6% to a record high after the company reported positive data related to its cholesterol drug and obesity treatment. All 435 House of …