Sixteen states, including California and New York, in a lawsuit on Monday (local time) sued United States President Donald Trump for declaring a national emergency to fulfill his long-pending demand of building a wall along the border with Mexico.New York Times reported that the lawsuit, filed in Federal District Court in San Francisco, states that the US President cannot transfer funds for construction of any wall along the border as it is the Congress that controls the expenditures.The lawsuit, California et al. v. Trump et al., accuses Trump of "an unconstitutional and unlawful scheme", while adding that the states are trying "to protect their residents, natural resources, and economic interests from President Donald J. Trump's flagrant disregard of fundamental separation of powers principles engrained in the United States Constitution.""Contrary to the will of Congress, the president has used the pretext of a manufactured 'crisis' of unlawful immigration to declare a national ...