Today's installment of campaign-related news items from across the country.
* In Florida, a new poll from Siena College/New York Times Upshot shows Hillary Clinton narrowly leading Donald Trump in a four-way contest, 41% to 40%. In a head-to-head match-up, the two are tied at 43% each.
* The same poll shows Sen. Marco Rubio (R) ahead in his re-election bid in Florida, 48% to 42%, over Rep. Patrick Murphy (D).
* The Clinton campaign unveiled a new video over the weekend featuring a World War II vet reflecting on Trump's criticisms of former prisoners of war. At 87 seconds, it's too long for a television ad, but as a web video, it's pretty devastating.
* In Pennsylvania, a Morning Call/Muhlenberg College poll shows Clinton leading Trump in Pennsylvania, 47% to 38%.
* The same poll found Katie McGinty (D) ahead in Pennsylvania's U.S. Senate race, leading incumbent Sen. Pat Toomey (R), 43% to 38%.
* Is President Obama fired up about the 2016 election cycle? Watch this two-minute clip from his remarks at the Congressional Black Caucus Foundation gala Saturday night. It's been a while since I've seen him speak with quite this much passion.
* Based on its investments, it looks like the Democratic Senatorial Campaign Committee is increasingly optimistic about competitive Senate races in Missouri and North Carolina, and less optimistic about the contests in Ohio and Florida.
* On a related note, Sen. Richard Burr (R-N.C.), increasingly worried about losing, has abandoned a conservative Medicare plan he helped write.
* Trump said over the weekend that his lawyers want to sue the New York Times, and he hasn't ruled out the possibility.
* And the official Commission on Presidential Debates announced on Friday that only Clinton and Trump have qualified for the first debate, which will be held a week from today. Third-party candidates needed to reach 15% national support, and neither Gary Johnson nor Jill Stein were close. Johnson has previously said failure to reach the debates would mean "game over" for his candidacy.