WASHINGTON >> A new $1 trillion COVID-19 response package by Senate Republicans is supposed to give the government more weapons to battle the surging coronavirus pandemic. But GOP lawmakers have more than just the “invisible enemy” in mind.

The Republican measure includes billions for F-35 fighters, Apache helicopters and infantry carriers sought by Washington’s powerful defense lobby. Overall, the proposal stuffs $8 billion into Pentagon weapons systems built by defense contractors like Boeing, Lockheed Martin, and General Dynamics — corporate titans that sit atop the Washington influence industry.

The bill, drafted by Senate Appropriations Committee Chairman Richard Shelby, R-Ala., would deposit $2.2 billion in Pentagon shipbuilding accounts, boost missile defense systems in California and Alaska and deliver about $1.4 billion for C-130 transport planes and F-35 fighters manufactured by Lockheed Martin Corp. Some of the F-35s could be delivered to an Air National Guard unit in Montgomery, Alabama.

In several cases, Shelby proposes restoring cuts imposed by the administration that diverted almost $4 billion to help pay for construction of President Donald Trump’s border wall. The Pentagon won significant increases last year with passage of a budget agreement that erased automatic spending cuts known as sequestration.

The $8 billion weapons procurement package is part of a $29.4 billion defense portion of the GOP’s $1 trillion coronavirus response measure, a White House-backed package released Monday. Providing that money now would help build headroom into the annual defense funding bill tat Congress plans to write later this year.

The outlook for Shelby’s proposed defense projects appears dim. Democrats slammed the add-ons and Senate Republican leader Mitch McConnell of Kentucky said Tuesday that the final package should not stray from the coronavirus response.

“Did you see the states it goes to? Maine. Arizona. Kentucky — we have a list,” said Senate Minority Leader Chuck Schumer, D-N.Y., naming states where Republicans are defending seats in the fall election.

The administration never officially asked for the defense funding. It instead delivered informal requests to the powerful lawmakers like Shelby who sit atop the defense funding panel, aides say. It grew from there to include $1.1 billion to build Boeing Poseidon surveillance jets, with another $283 million for the company’s Army Apache helicopters, which are manufactured in Mesa, Arizona.

Endangered GOP Sen. Martha McSally of Arizona has been pressing a $650 million project to replace the wings of A-10 Thunderbolt ground support aircraft, many of which are based at Davis-Monthan Air Force Base in Tucson. There’s another $49 million for Navy sonobuoys, listening devices that can detect submarines, that are likely to be manufactured in Florida, according to an analysis by Democratic staff aides requiring anonymity to share internal working documents.

“The defense industrial base — a lot of it’s been eroded right now. A lot of people are off from work,” Shelby said. “We’ve got a lot of suppliers involved in there.” A Shelby spokeswoman added that the country’s defense industrial base is “essential to our economy and to the defense of our nation” and said the bill would support millions of jobs.

But further justification for the huge weapons procurement package — drawn in part from a Pentagon “unfunded priorities” wish list of items excluded from the official $740 billion or so defense budget — has been lacking. The measure doesn’t say in many cases whether the money is going to buy additional aircraft and other weapons or provide additional money for existing contracts.

The Shelby measure would restore defense dollars that were diverted for border wall work, such as $260 million for a high-speed Navy transport ship to be built by Austal Ltd. in Mobile, Alabama. The Austal shipyard is also the most likely contractor for “four expeditionary medical ships.”

Anniston, Alabama, is also a beneficiary, along with Lima, Ohio, of $375 million for Stryker Army combat vehicle upgrades. Shipyards in Mississippi and Maine would benefit from $250 million for shipbuilding industrial bases.

“They turned the appropriations portion of the bill into a spending spree on weapons systems and a new federal building designed to block competition to the president’s hotel,” said House Appropriations Committee Chairman Nita Lowey, D-N.Y. “It’s clear to me that amphibious ships don’t feed hungry children.”

The package includes $1.8 billion to rebuild the FBI’s headquarters in downtown Washington. The building is near the Trump International Hotel, and if the FBI moves the lot could be used to construct another hotel that would compete with Trump’s.

Shelby is among the last of a brazen breed of veteran Senate appropriators who try to push the envelope to deliver for their states. He also appears to be more independent than his predecessor, the late Sen. Thad Cochran, R-Miss.