Two new and disturbing polls just out suggest that the road to reelection is getting tougher for President Obama. In the most significant, Gallup found that union member support for the president is weaker than it was on Election Day. While Obama took 67 of the union vote, according to 2008 election night polling by Peter Hart for the AFL-CIO, Gallup discovered that just 58 percent of union members back the president now. Some 35 percent support Mitt Romney, 5 percent more than Sen. John McCain won in 2008. Gallup said the union vote is a significant block for Obama,...