"The executive order renders many children born on American soil without citizenship, creating for the first time a class of American-born children whose health and wellbeing are threatened by their own government," he says.
"This is an extreme and unprecedented act, and this executive order is an assault on the rule of law. It attacks a right that is core to our nation’s earliest days," the Democrat lawmaker adds.
Platkin goes on to say that if the order takes effect, hundreds of thousands of children who are born in the US to non-citizen parents each year will suddenly have an "uncertain legal status". He says this equals to at least 420 children born every day
He adds that the state's ability to safeguard the wellbeing of these children, including providing basic services like healthcare and education, will be "thrown into disarray".
"Presidents in this country have broad powers, but they are not kings," Platkin says, adding: "They do not have the power to unilaterally rewrite the constitution, to disregard our laws."