No we don't.
There is no need for more federal meddling in state functions.
We just need prison time and large fines for the voters who commit felonies by voting in two different states and a public trial to show every democrat what happens to people who cheat.
"This is why we need a national database... "
We do? We already have several. The IRS. The Social Security Administration. There are others, too.
You think the solution to this is for the federal government to keep even more information about you? I don't think so.