(FASTNEWS|COLOMBO) – US President Donald Trump and the Republican Party are suing California over recent legislation requiring presidential candidates to file tax returns in order to stand in primaries.
State Governor Gavin Newsom, a Democrat, signed the law last week.
In two lawsuits, the plaintiffs said it was unconstitutional as it added an extra requirement to run for president.
Mr Trump has refused to release his tax returns, saying that they are under audit.
California is the first state to succeed in passing such a law, though others under Democratic control have tried.
It would apply to ballots for primary elections but not the general election.
The state is involved in more than 40 lawsuits against the Trump White House on issues such as environmental regulation and immigration.
