The important point is that Corker declined. He did not lend Obama the respectability of his acceptance of the ride.
So you put single quotes around ‘accomplice,’ do you? Does this mean you exonerate Obama of all responsibility in the officers’ deaths?
I put the word "accomplice" in quotation marks because you had used the word and if Obama is guilty of murder as you suggest it would require much more from the Texas delegation then to stay mum, appear dutiful and attentive during his speech, and not decline when not invited to ride in Air Force One.
Of course I believe that Obama has moral responsibility for the deaths of the officers in Dallas because he has played the race card for nearly 8 years as part of his plan to transform America.
But it is absurd to say that Obama has personal responsibility for the actual act involved, that would require that Obama had some foreknowledge and failed to act or even encouraged the murders.
The time to challenge Obama and his policies about race for their moral vacuity began about eight years ago but those opportunities were squandered. It is not appropriate at a time of a memorial ceremony for fallen heroes to start that fight.
One might say that by riding in Air Force One Ted Cruz has protected his moral standing to attack Obama's policies which he would have compromised had he made an issue of declining the ride. Remember, every criticism of Obama ultimately is rebuffed by charges of racism. It is vital that personal petulance or hatred be removed from public perception if Obama's policies are to be defeated. If Cruz declines the ride publicly and then criticizes Obama, he leaves himself open to charges of racism etc.