Couldn't the Democrat Party in Texas do a better job vetting its candidates -- especially for the governor race? After filing an extension, Democrat candidate Wendy Davis released her tax return for 2013: She made $250,000 and paid $62,000 in taxes. But the IRS fined her $1,200 because she underpaid the first time around. It's nice to know Democrats are leading on this "paying your fair share" thing. More…