""​​It’s a complex conflict and a bloody one, and it needs to end," Rubio said after being confirmed.Regardless of the approach the Trump administration takes, Rubio will be at the forefront of any peace negotiations between Kyiv and Moscow.Trump sworn in as 47th US president, says he’s taking back Panama Canal; doesn’t mention Ukraine“Golden age of America begins right now,” U.S. President Donald Trump said.The Kyiv IndependentTim ZadorozhnyyWho is Marco Rubio?Rubio, 53, is a former Republican senator from Florida. The son of Cuban immigrants, he would be the first Latino U.S. secretary of state.Rubio ran for the Republican nomination for U.S. president in 2016 but lost out to Trump after a heated, and at times bitter contest. Despite the rivalry at the time, Rubio went on to endorse Trump in 2016, albeit in not the most convincing of terms.