Kyrsten Sinema is readying for a re-election campaign as an independent

The move will test whether the former Democrat can build a centrist base - and also risks splitting votes

The Arizona US senator Kyrsten Sinema is preparing for an independent re-election campaign in a move that will not only test whether the former Democrat can build a centrist base apart from her former party - but may also risk splitting votes among Democratic supporters.

Earlier this week, Sinema gathered her team in Phoenix and discussed re-election strategies, the Wall Street Journal reported on Friday, citing anonymous sources. Part of the meetings involved Sinema and her team reviewing slideshows that laid out a timeline of her potential run, as well as timing details, according to the Journal which reviewed the slides.