Capital - The week in politics and issues
The two events will pit long-term Democratic incumbents against popular progressive challengers in two of the most high-profile races in the Sept. 4 primary.
A campaign spokesman said the reservation is an initial effort to make sure people vote yes on Question 3 on Election Day.
The $2.93 million that Warren aides said the Cambridge Democrat raked in between April and June was nearly 10 times the amount any of the three Republicans running in the Sept.