Former Congressman Bob Livingston has endorsed Donald Trump for president.

Livingston, who was appropriations committee chairman in the 1990s, and almost the speaker of the House, is now a big-deal corporate lobbyist on K Street. Largely, he's an earmark lobbyist. "[W]orking to influence the federal budget process reigns supreme" at the Livingston Group, The Hill reports. Livingston has inveighed against the Republicans' earmark ban in The Wall Street Journal and in Esquire.

His lobbying clients include appropriations-seekers and major corporations and business groups. Citigroup, the U.S. Chamber of Commerce, Verizon, the City of New Orleans, and many others are Livingston Group clients.

Livingston joins other top Republican lobbyists Bob Dole, Rudy Giuliani, and Trent Lott in endorsing Trump over his only serious rival right new, Ted Cruz.

Think about this when Trump acts like a populist, yet promises to be a great dealmaker. These lobbyists know they can get a great deal from Trump, a man with no deeply held beliefs and with a long history in cronyism.

Timothy P. Carney, The Washington Examiner's senior political columnist, can be contacted at tcarney@washingtonexaminer.com. His column appears Tuesday and Thursday nights on washingtonexaminer.com.