Sen. Bernie Sanders is returning to New Hampshire on Labor Day, sparking more speculation that the independent senator from Vermont is gearing up for a second run for the Democratic presidential nomination.

The Monitor was first to report on Wednesday that Sanders will give the keynote address in Manchester on Sept. 3 at the annual New Hampshire AFL-CIO Labor Day Breakfast. It’s the fifth straight year he will have headlined the large labor gathering.

“We’re very excited that Sen. Sanders will be able to make our Labor Day breakfast a memorable event,” state AFL-CIO President Glenn Brackett said.

Brackett also noted Sanders’s “passion and support for working families.”

Sanders crushed eventual Democratic presidential nominee Hillary Clinton in New Hampshire’s February 2016 Democratic presidential primary, launching him toward a long and bitter battle with Clinton for the nomination. Sanders eventually endorsed the former U.S. secretary of state that summer at a large rally in Portsmouth.

The Labor Day visit will be the senator’s first stop in 10 months in the state that traditionally holds the first presidential primary in the race for the White House. Sanders was last in the Granite State in late October to headline the Strafford County Democrats’ Fall Celebration, which was held at the American Legion Hall in Rollinsford.

After Sanders headlined last year’s breakfast, he served as the main attraction at a rally hosted by progressive group Rights and Democracy New Hampshire held in Concord’s Rollins Park.

Besides last year’s visits to New Hampshire, Sanders made a trip in February to Iowa. The state’s caucuses kick off the presidential primary and caucus calendar.

Sanders will be in New Hampshire eight days before the Sept. 11 state primary. Sanders’ son Levi is one of 11 Democrats running for the party’s nomination to succeed retiring four-term Rep. Carol Shea-Porter in New Hampshire’s 1st Congressional District. But the elder Sanders has not endorsed his son and instead stayed neutral in the primary battle.