The stopgap measure would keep the government funded through Sept. 30. But Democratic leaders are opposed, and it’s unclear if Johnson can pass it with only Republicans.

House Speaker Mike Johnson on Saturday unveiled a short-term funding bill that would keep federal agencies funded through September and fend off the looming government shutdown. The 99-page ‘‘Full-Year Continuing Appropriations and Extensions Act,

House Speaker Mike Johnson proposed a stopgap funding bill to maintain current federal spending levels through September 30.