Today's installment of campaign-related news items that won't necessarily generate a post of their own, but may be of interest to political observers:
* In Iowa, a key 2012 battleground, President Obama's lead is down to just two points over Mitt Romney, 47% to 45%. In May, Obama was ahead by 10 points.
* In Massachusetts, Elizabeth Warren's new ad stresses Republican opposition to women's rights and reproductive health. "How could this be happening in 2012?" the Senate candidate asks.
* Confirming another recent poll, Public Policy Polling shows a very competitive U.S. Senate race in Connecticut, with Rep. Chris Murphy (D) leading former wrestling executive Linda McMahon (R) by four points, 48% to 44%. The same poll found Obama ahead in Connecticut by 13 points.
* In Nevada, one of the nation's most competitive U.S. Senate races remains very close, with appointed Sen. Dean Heller (R) leading Rep. Shelley Berkley (D) by just two, 47% to 45%.
* The National Republican Senatorial Committee is growing increasingly concerned about the Senate race in North Dakota, and is buying millions of dollars in additional airtime, while scaling back efforts in Missouri.
* In Pennsylvania, a Philadelphia Inquirer poll shows Sen. Bob Casey (D) leading Tom Smith (R) by 19 points, 53% to 34%. This one won't be close.
* And in Arizona, Republican congressional candidate Gabriela Saucedo Mercer is raising eyebrows for saying she wants to end legal immigration for all Middle Easterners.
