He was one of the first three members of the DUP to be introduced to the second chamber as a life peer, giving the party its first-ever representation in the House of Lords.

[2] Browne has been an active working peer during his time in the House of Lords, regularly contributing to debates on a range of issues including: Restoration of the Devolved Institutions in Northern Ireland,[3] Armed Forces Veterans, Military [4] Brexit,[5] Historical Abuse and Gambling.

[6][7][8][9] [10][11] On 19 October 2024, Browne's portrait in Belfast City Hall was removed from a wall and the glass in its frame smashed during an event to celebrate an Irish language group’s 20th anniversary.

The employee has now resigned from their employment and their party membership.”The Police Service of Northern Ireland (PSNI) is treating damage caused to the portrait as a hate crime.

[14] In a social media post, DUP leader Gavin Robinson said: “We don’t know if the motivation was sectarian bigotry, antisemitism, wanton destruction or a heady mix of the three … but [it’s] a disgrace.”[15] Belfast City Council said it was "assessing the extent of the damage and looking into the circumstances".