[1][2] In 2002 Mūrniece was elected as a member of the eighth Saeima.

After the resignation of Einars Repše as the Minister for Defence, Mūrniece took the office on 5 January 2006 and served until 7 April 2006 when the New Era Party resigned from the government.

Mūrniece was also elected as a member of the ninth Saeima in 2006.

After the October 2010 election Mūrniece continued her work as the Minister.

She was married to Unity member of the Saeima Hosams Abu Meri.