It's great the Republican-led House was able to come together to codify the raised standards of security Pres. Joe Biden already implemented with the Secret Service. Trump and Harris are each being protected to the best of the Secret Services' ability. Next, the Secret Service needs more funding to make sure it can do the best job possible. That means it's up to the GOP leaders in the House to get a funding bill passed.
Before the Secret Service receives more funding, it must show it's capable of doing its job, including keeping members of Congress in the loop. But so far the Secret Service has joined the FBI in slow-walking the investigation into the first assassination attempt on Trump. Either this is incompetence or the agency is trying to hide something from Congress. Transparency must come before additional funds are allocated.
There's a 28% chance that the next assassination of a sitting US president will occur after Jan. 1 2100, according to the Metaculus prediction community.