Investigators on Special Counsel Robert Mueller’s team are probing Donald Trump’s business ties to Russia during the period before he ran for president in 2016.

Mueller’s prosecutors have been asking witnesses in the ongoing probe into alleged Russian meddling in the 2016 elections questions about when Trump decided he would run for president.

They are focused on the 2014 period, when Trump was moving toward making a run – as well as the financials and other matters regarding the 2013 Trump-owned Miss Universe pageant, which was held in Mosco.