On 26 March 2007 , he met with DUP leader Ian Paisley face-to-face for the first time , and the two came to an agreement regarding the return of the power-sharing executive in Northern Ireland . Adams was re-elected to the Northern Ireland Assembly on 8 March 2007 , and on 26 March 2007 , he met with DUP leader Ian Paisley face-to-face for the first time , and the two came to an agreement regarding the return of the power-sharing executive in Northern Ireland .