Newsreel
Trump Files Lawsuit Against New Law Targeting His Tax Returns

The Primary: Trump and the GOP filed a lawsuit challenging California's new tax law.
Who? What? Why?: The new tax law requires all presidential and gubernatorial candidates release their tax returns to be included on the state's primary ballot.
The Baseline: Trump has yet to release his tax returns. The new law could prevent him from being listed on the state's primary ballot next year.