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A spool of stickers rests on a table at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)

A spool of stickers rests on a table at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)

A voter fills out their ballot at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)

A voter fills out their ballot at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)

FILE - Sen. Elizabeth Warren, D-Mass., reacts to applause during the Democratic National Convention Thursday, Aug. 22, 2024, in Chicago. (AP Photo/J. Scott Applewhite, File)

FILE - Sen. Elizabeth Warren, D-Mass., reacts to applause during the Democratic National Convention Thursday, Aug. 22, 2024, in Chicago. (AP Photo/J. Scott Applewhite, File)

A person walks past polling station signs outside the Newton Free Library during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, in Newton, Mass. (AP Photo/Steven Senne)

A person walks past polling station signs outside the Newton Free Library during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, in Newton, Mass. (AP Photo/Steven Senne)

Voters fill out their ballots at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)

Voters fill out their ballots at a polling station during Massachusetts state primary voting, Tuesday, Sept. 3, 2024, at the Newton Free Library, in Newton, Mass. (AP Photo/Steven Senne)