Tesla CEO Elon Musk has joined the tech chorus opposing President Donald Trump’s seven-country ban on immigration. In a two-part tweetstorm, Musk said the orders are “not the best way to address the country’s challenges” and that “many people” affected “don’t deserve to be rejected.”

The blanket entry ban on citizens from certain primarily Muslim countries is not the best way to address the country’s challenges — Elon Musk (@elonmusk) January 29, 2017

Many people negatively affected by this policy are strong supporters of the US. They've done right,not wrong & don't deserve to be rejected. — Elon Musk (@elonmusk) January 29, 2017

Musk’s posts drew criticism from some followers who argued he hadn’t gone far enough in his statements. Perhaps complicating the issue is that just yesterday, Musk agreed to serve on Trump’s Manufacturing Jobs Initiative. Musk is also part of Trump’s economic advisory board.

Musk was one of a large number of CEOs who weighed in on the immigration ban Saturday, with varying degrees of criticism.