Recent polls from The Times and Sienna show Democrats leading or tied with Republicans in all seven states with close Senate races, though only the Democratic leads in Michigan and Texas are significant enough to rule out margin of error. "If these polls reflect reality and the trends continue, the Democrats will gain control of the Senate," writes the Times.

Recent polls from The Times and Sienna show Democrats leading or tied with Republicans in all seven states with close Senate races, though only the Democratic leads in Michigan and Texas are significant enough to rule out margin of error. "If these polls reflect reality and the trends continue, the Democrats will gain control of the Senate," writes the Times.