including the one contribution listed in the wikipedia entry, and he's hardcore enough in the GOP to have earned a speaking role at a national GOP convention. Most importantly and most recently, though, appointed by Trump's personally-selected DA for the SDNY. Here's the tidbit on party, but the whole entry is interesting (lots of cool prosecutions--the guy's clearly not some lefty peacenik or radically politicized Dem):

While Khuzami was selected to serve as Enforcement Director by Mary Schapiro, the SEC Chairman appointed by Democratic President Barack Obama, he also spoke before the 2004 Republican National Convention on behalf of then-president George W. Bush for the extension of the Patriot Act.[15] On April 28, 2005, he testified before the United States House of Representatives Subcommittee on Crime, Terrorism and Homeland Security in support of the reauthorization of the Patriot Act. He also donated to the presidential campaign of John McCain.[56]