Election Crisis: Haughey was in a similar position

It was 1990 and Brian Lenihan senior was in the wars, but the taoiseach was standing firmly behind his tánaiste, minister for defence and the aspiring president.
A few days later, Brian Lenihan was thrown under the bus, to borrow Leo Varadkar’s phrase. When his Progressive Democrat coalition partners threatened to collapse the government if Lenihan was not removed, Haughey unceremoniously sacked his tánaiste.