[1][2][3] Cook began his career in broadcast journalism as an intern for Nightline and hosted shows on Duke Union Community Television.

As Washington anchor and correspondent, he co-anchors Bloomberg’s morning programming and reports on the intersection of business and government.

[6] He has interviewed Tim Geithner, Henry Paulson, Lawrence Summers, Chris Dodd, Mitch McConnell, and Jamie Dimon.

He anchored the network's primary season and election night coverage, interviewing the major candidates including Barack Obama and John McCain.

Previously he did extensive reporting on the Gulf Coast's recovery from Hurricane Katrina, and traveled to Beijing with Secretary Paulson for a closer look at the economic relationship between the U.S. and China.