In his absence, the 32-strong Great Britain and Northern Ireland squad for Paris includes Harry Aikines-Aryeetey, Dwain Chambers and Joel Fearon for the men's 60m sprint.
With Dwain Chambers already assured of his place in Qatar after victory at the trials, Harry Aikines-Aryeetey started the day's action at the NIA as favourite to grab the second spot after clocking 6.55 last week in Sheffield.
Both plans will face a key test on Wednesday when John Boehner (R-Ohio) and Harry Reid (D-Nev.) plan to bring their proposals to the floors of their respective chambers for a vote.
Chambers, who will be partnered in the British team by former world junior 100m and 200m Harry Aikines-Aryeetey, became the world's third fastest ever over 60m when he clocked 6.42 secs in Turin to be crowned European Indoor champion a year ago.