Original: Domestic political career Hillery , though not himself political , agreed under pressure from Clare 's senior Fianna Fáil TD , party leader and former Taoiseach , Éamon de Valera , to become his running mate in the 1951 general election .
Simplified: Domestic political career Hillery was asked by Éamon de Valera to be his running mate in the 1951 general election .