jjff: Your statement that "Obama never had 3% GDP growth in 8 years!" is factually incorrect. I assume the statement was made as an unfavorable comparison with the recently reported 3.2% rate for the 1st quarter 2019.
The Real GDP Growth rate is reported for both quarterly and annual periods. Even though the growth rate is reported quarterly, the BEA annualizes it.
During the Obama administration, the reported quarterly rates exceeded 3% for four reporting periods: