What if Thatcher had won the Conservative election by a landslide in 1990?

Background
In 1990, Margaret Thatcher was forced to resign as leader of the Conservative Party and as Prime Minister of the United Kingdom when she failed to obtain the 15% of votes required to remain in power and defeat Michael Heseltine and John Major. My question is, what would have happened if she had not only obtained 15% of Tory votes, but she had won the leadership election by a landslide of 80% of votes?

1991
January 1st: The results of the Conservative leadership election come in. Margaret Thatcher has defeated Michael Heseltine by 80% of votes to a mere 16.7% of votes to Heseltine, forcing him to resign as an Member of Parliament. Thatcher also publicly denounces 3rd placed candidate John Major, stating that 'she cannot have traitors in her Cabinet', and thus removing him from his position as Chancellor of the Exchequer. Kenneth Clarke replaces him.

August 19th-21st: Following the kidnapping of Soviet leader (and ally of Margaret Thatcher) Mikhail Gorbachev, British troops enter the Soviet Union to rescue him from hardline Communists. This intervention results in the murder of Boris Yeltin, acting president of the Russian SFSR, by the 'Gang of Eight'. New USSR President Gennedy Yanayev then seizes full control of the country and retaliates to Thatcher's attempted intervention by forming an alliance with the IRA, effectively putting both countries at war with one another.

August 24th: After three days of deliberation, US President George H.W. Bush announces his support for the United Kingdom. He also demands that the USSR withdraw their alliance with the IRA immediately, otherwise America will declare war on the Soviet Union. Yanayev refuses and goes to the UN for help.

August 26th: As British and American troops edge closer to Moscow, making war seem inevitable, American and British leaders Bush and Thatcher hold crisis talks with Gennedy Yanayev in Geneva. At the end of these meetings, the three leaders acknowledge peace with one another. Yanayev then states his apologies to the rest of the world for creating the political situation. When Yanayev returns to the USSR, riots break out due to his decision to back out of war. These riots then escalate into civil war between Yanayev's Communists and Silayev's Democrats.

August 31st: After three days of bedlam in the USSR, the Communists surrender and Yanayev tenders his resignation as Premier. Mikhail Gorbachev returns from captivity to resume his role as President, and announces the immediate dissolution of the Soviet Union, stating that 'if it remains, the violence will only continue'. He then announces that Ivan Yilayev will become the governor of the SAIS (Soviet Alliance of Independent States), before announcing his resignation.

December 1st: Margaret Thatcher announces a General Election to be held on May 1st 1992, and also announces that she will be stepping down as Prime Minister following the General Election. Michael Howard is announced as her successor as leader of the Conservative Party.

1992
January: Ivan Yilayev officially announces the complete dissolution of the SAIS into 15 independent countries. The British government welcome this decision as the 'death knell for Communism'.

February: Neil Kinnock resigns as leader of the Labour Party, following allegations of favouritism within the party. John Prescott is announced as his successor, and launches his election campaign, the now infamous "Better Britain for Everyone".

May 1st 1992: Joy for Labour as John Prescott is elected as British Prime Minister. His first act as Prime Minister is to begin peace negotiations with the IRA.

This is the beginning of an article detailing events in world politics from 1990 to the present day due to the occurrence of one event. Feel free to edit this page. Feedback much appreciated.