BRASILIA, Nov 23 (Reuters) - The head of Brazil's electoral court Alexandre de Moraes on Wednesday rejected a complaint from President Jair Bolsonaro's allies to challenge the presidential election, which the incumbent lost by a small margin, according to a court document.Leftist ex-President Luiz Inacio Lula da Silva narrowly defeated Bolsonaro in the Oct. 30 runoff election, marking a stunning comeback for the leftist former president and the end of Brazil's most right-wing government in decades.Moraes, who serves as a Supreme Court justice, also fined the parties in Bolsonaro's coalition to the tune of 22.9 million reais ($4.27 million) for what the court described as bad faith litigation, the document showed.On Tuesday, Bolsonaro's Liberal Party (PL) filed a complaint to challenge the outcome of the election claiming some of the electronic voting machines were flawed and those votes should be invalidated, an argument that election authorities met with skepticism.Election experts and political analysts blasted the election challenge from Bolsonaro allies as weak on the merits, though it could still fire up supporters who have been protesting his defeat at the polls."