WASHINGTON, July 5 (Reuters) - The dispute between Republican President Donald Trump and his main campaign financier Elon Musk took another fractious turn on Saturday when the space and automotive billionaire announced the formation of a new political party, saying Trump's "big, beautiful" tax bill would bankrupt America.

Members of the Montana Senate denied a chance to vote for state Republican Party leadership at a June convention are demanding a do-over. The nine Republican lawmakers are caught up in a months-long festering feud for breaking with the Freedom Caucus at the start of the 2025 Legislature.

In recent months, members of the far-right faction have talked a good game, right before caving under pressure in pitiful fashion.