Plenty of time for tweeting
10:30 am ET Participates in a congressional listening session
1:25 pm ET Speaks with President Beji Caid Essebsi of Tunisia
2:30 pm ET Meets with Attorney General Jeff Sessions
3:15 pm ET Signs HJ Res. 38, which disapproves of an Obama environmental rule
3:50 pm ET Tapes his weekly address; Cabinet Room
Trump has already been tweeting about the stock market today. I'm not sure which winning streak he's talking about. The S&P 500 has been up for six days, which is great but it's not historic.
You might argue that the President tweeting about the stock market is a contrarian indicator. Seems like a good time for a pullback anyway.