Rubuta ci gaba ga wannan sakin layi - A matsayinsa na Mataimakin Lauyan kuma daga baya a matsayin Lauyan a Ma'aikatar Harkokin Wajen, Clark sau da yawa yana fuskantar manyan batutuwa na kasa da kasa. Alal misali, lokacin da juyin juya halin Mexico
ya barke a shekarar 1911, an kira shi don yanke shawara mai mahimmanci kuma ya ba da shawarar matakan aiki ga Sakataren Gwamnati da Howard Taft. Musamman damuwa ga Clark shine wahalar tsarkakan zamanin ƙarshe waɗanda ke zaune a cikin yankunan Mexico kuma galibi ana kama su a tsakiyar rikici kuma kasancewarsu a Mexico ya ɓata wa 'yan juyin juya hali rai.