When people think of voter fraud at the national level, Mississippi doesn't really come to mind. And do you really think we should leave a ridiculous, unqualified statement like this to stand unchecked?
That said, if it's not a problem as you say, you shouldn't have an issue with voter ID laws.
If there is wide spread voter fraud as you and Trump claim then please provide evidence of such.
Back when I was in the service I cast my vote from my ship which was hove to in about 10 feet of ice about 6 miles from the US Antarctic Base in McMurdo Antarctic. For a long time the envelope that carried my ballot was on display in the local Chancery Clerks office as proof that mail in voting could be done.