House Speaker Mike Johnson unveiled a spending bill Sunday that will avert a government shutdown if it is passed by both the House and Senate before funding runs out on Sept. 30.Johnson said in a letter to lawmakers that he does not want a shutdown weeks before the election. But he also stressed that the legislation “will be a very narrow, bare-bones CR (continuing resolution) including only the extensions that are absolutely necessary.”The spending plan, known as a limited continuing resolution, has bipartisan support.The top Democrats in Congress, House Minority Leader Hakeem Jeffries and Senate Majority Leader Chuck Schumer, praised bipartisan negotiations that led to a funding agreement “free of cuts and poison pills” and signaled swift passage of the stopgap bill ahead of the deadline.Still, even with a possible deal, the federal government will start preparing for a potential shutdown of nonessential operations this week, which could affect millions …