President Obama descends the steps of Air Force One as he arrives in New York on Oct. 7. Obama will attend several Democratic Party fundraisers during the one-day trip to New York and Connecticut. (Kevin Lamarque/Reuters)

1. Americans for Prosperity is spending loads on a giant field operation in close Senate races around the country. Matea Gold reports.

2. Politicians have to approve their campaign ad messages. It's the law. But it can sound silly sometimes, so they have to get creative. Roll Call unpacks the art form.

3. Maggie Haberman and Jake Sherman look at how the 2016 Republican presidential primary could be a big mess.

4. What's going on with the Democratic Party in Texas? Texas Monthly takes a look.

5. The Wesleyan Media Project counts up the negative campaign ads from two weeks in August and September; it turns out Democrats and their supporters are ahead. Most of the negative ads are coming from outside groups. The least positive Senate race has been Louisiana's — 0 percent of the ads from the stretch measured were positive.

6. Sasha Issenberg explains how groups have found success in changing people's minds about social issues.

7. What does a restaurant have to do to prepare for a presidential visit? Grub Street talks to a chef to find out.