Soon after completing graduation, he started working as a press secretary for republic candidate, Jon S. Fossel. Later he served from the same post for the Congressman, Norman Lent.
In 1985, Fleischer started to work as field director for ‘National Republican Congressional Committee’ and worked there for three years. Afterward, he started working as press secretary for the congressman, Joseph DioGuardi.
In 1989, he was appointed as the press secretary for the Senator, Pete Domenici. In his early career, he also served as a deputy communications director for the for US president, George H. W. Bush reelection campaign of 1992.
During the time of 2000 presidential election campaign, Fleischer got new responsibility as communications director for Elizabeth Dole but later he joined George W. Bush presidential campaign.
Eventually, in the year 2001, when George W. Bush held the responsibility as President, Fleischer turned out as the first person to serve as the press secretary under his administration. On 19th May 2003, Fleischer announced that he would be resigning from the post. On 15 July of the same year, he was replaced by the deputy press secretary named Scott McClellan.
Ari Fleischer has remained as a regular contributor for CNN Network. Alongside his media and politics career, he has also tried his hands in authoring releasing a book entitled Taking Heat, The President, the Press and My Years in White House.