Jeff Bezos and Lauren Sanchez's glitzy three-day wedding celebration kicks off this Thursday in Venice. Not everyone is pleased.

The billionaire founder of the Blue Origin space company has worked to charm Donald Trump in recent months, and even invited the president to his lavish, star-studded wedding in Venice, White House officials told The Wall Street Journal. The president apparently isn’t planning to attend, due to scheduling conflicts.

Amid rainstorms and celebrity sightings, festivities are underway in Venice for the wedding of Jeff Bezos and Lauren Sanchez. After separate trips to space, a three-day wedding extravaganza in Venice is closer to home for the billionaire, who grew up in Houston, and his bride-to-be.