First of all this should be part of the "vetting" process, before someone is allowed even to run; now after 2 years they are asking for it again, while during the first time they asked for it they should have said: ( if there was an"black and white law") Then you can't become or run for President. Full stop. As with everything here related to "rules" or "laws" they are "half baked" So when is someone going to create the correct laws? Over 300 years?
What kind of vetting process would you like to see put in place?
What kind of laws do you think should be created?
The "vetting" process should have an mandatory "check list" ; not just an "political" or "polarized" objective. Such checklist should "dot" all the things which we are now stuck with( like Trump and "incompetence"), The "checklist should contain these subjects but likely much more: education, total background (as hopefully Mueller did), life experience, international experience, accomplishments, knowledge of the "laws", history knowledge of the world, knowing "cultures", has leader qualities, is flexible, is not an religious fanatic, is not corrupt, does not love money, stands with both feet on the ground, is not an "professional" liar, as well shows the tax returns (mandatory), has morals, integrity, open minded etc. and so on. Such "check list" should be made "independent" without "party" preferences.
Related to laws; you should know that by now,which laws don't work or are outdated; like the "voting" laws.
First of all "votes" should count, get rid of the "electoral college", no more "money" or "Pac's" ( each candidate can only spent the same limited t.b.d. amount) no lobbying or influence peddling, candidates should not be "billionaires" in order to prevent that they use their position to expand their wealth and power over the people (as is now the case) etc.
How about decent "gun" laws, healthcare laws, without lobbying, environmental laws, proper water management laws, better education laws, which teach kids how to manage their lives in an changing world, proper pollution laws (all undone by Trump) Healthcare laws, which makes sure "health" is the issue, not the"money"; rip offs of the "lobbyists", pharma or doctors and ridiculous "adds" which only raise the price of drugs.
Sorry this is only the top of the iceberg; the biggest problem is here that "money" is injected into everything. The goal has never been to get an "healthy society" which is well educated about "life", the world around us, as well our standing in the world. It is the "island" mentality (blinders on) which is detrimental by "sticking" to the old ways". Britain suffers from the same problems, because it is also an island and sticks to its 1500's laws and rules; put an wig on your head then you are a judge. Their problems with the EU is not surprising; they live in another world as the US as well. ( the only two countries who uses inches, feet, lbs etc.)
Probably you will call the above "ranting" as well, but at least I try to answer your questions. Have a great day!