Democratic presidential candidate Bernie Sanders says he is in favor of making Washington, D.C. a state.

In an address following his meeting with President Obama this morning, Bernie Sanders told reporters he will be competing in next week’s D.C. primary and will be making statehood one of his key issues.

“The major point that I will be making…is that I am strongly in favor of D.C. statehood,” Sanders said.

Residents of the District of Columbia pay federal taxes, but they do not have any representation in congress. For that reason, D.C. license plates have the motto “Taxation Without Representation” printed on them.

This announcement comes one day after D.C.’s mayor, Muriel Bowser, asked the Democratic National Committee to include D.C. Statehood on its platform.

“We are Washingtonians, and we are Americans too. And we want to be considered just like every other American,” Bowser said.

Bowser had previously suggested adding a statehood-related ballot to the November election, but she said she needs the help of the Democratic party if she hopes to continue fighting for the issue.