Michael Brian Brennan (born 1963) is a United States circuit judge of the United States Court of Appeals for the Seventh Circuit. He was first nominated on August 3, 2017, by President Donald Trump, and was re-nominated in 2018. He was confirmed May 10, 2018. He was previously a partner in the Milwaukee law firm Gass Weber Mullins LLC, and served 8 years as a Wisconsin Circuit Court judge. (Wikipedia)