Donald Trump Jr. Says He'll Campaign Against Justin Amash as Poll Shows Challenger Surging

President Donald Trump’s son said he'll travel to Michigan to campaign against Rep. Justin Amash, the only Republican to support impeachment efforts against the president.

Donald Trump Jr. delivers a speech during a ceremony for the official opening of the Trump International Tower Hotel in Vancouver, Canada on Feb. 28, 2017. Jeff Vinnick/Getty Images

President Donald Trump’s son said he'll travel to Michigan to campaign against Rep. Justin Amash, the only Republican to support impeachment efforts against the president.

“See you soon Justin... I hear Michigan is beautiful during primary season,” Donald Trump Jr. wrote on Twitter early June 13.