In Mr. Obama, の意味
NEWYORKTIMESのオンライン記事です。
http://www.nytimes.com/2008/01/09/us/politics/09assess.html?_r=1&hp=&adxnnl=1&oref=slogin&adxnnlx=1199855744-cjp94KCs/LOv0ZC6O2kOyg
For all the glee in her camp, she still faces big challenges. In Mr. Obama, Mrs. Clinton is facing an opponent who has been lifted on the wind of nationwide anti-Washington climate change. She has often appeared to be exasperated in seeking to challenge his level of experience, his consistency, his positions or his electability against a Republican party certain to fight hard to hold the White House.
上の文章の In Mr.Obama, Mrs.Clinton is facing...の部分で、In Mr.Obama の意味は、何なんでしょうか。単に、「オバマ氏に関して」のような意味でいいのでしょうか。それとも、「オバマ氏との戦いにおいて」のような意味にするべきなのでしょうか。