Braže was appointed to her ministerial portfolio on April 19 and had previously talked about the possibility of joining New Unity – which nominated her for the position – but so far had been serving on a non-partisan basis.
"Baiba Braže is not only an excellent professional with extensive experience and knowledge in the fields of foreign affairs and security, but is also a humane and sincere colleague," said a statement on the New Unity website, while Braže herself confirmed the information during a morning interview on the TV3 television channel.
Braže has not been a member of any political party during a diplomatic career of more than 30 years.