I was reinstated into my position yesterday( 昨日に 復職された) after 1 year leave( 1年間の 休職)
Even though Obama was a very popular president( オバマ氏 はとても人気だったか) it is impossible ( とっても無理です)to have him reinstated into that position.( 元の働き先 に 復職することが)
Reinstated のreは再びって意味です。