Thai, a Vietnamese immigrant who lives in Bellevue, served as a school board member prior to her election in 2018, replacing retiring legislator Judy Clibborn.

[5][7] She has also worked as a medical interpreter for Vietnamese immigrants and returned to the country to teach one of the first graduate nursing programs in Vietnam.

[8] She became involved in the Somerset parent teacher student association (PTSA) shortly after moving to the city, during a sabbatical from her work as a pharmacist.

[6][8] Thai filed her candidacy for the 41st district seat in early April 2018, shortly after incumbent Judy Clibborn announced her retirement.

[16] Thai served as Washington's representative during the roll call at the 2020 Democratic National Convention, recording a message from Seattle.