<prompt> Translate the following text to EnglishKuanzia mwishoni mwa mwaka 1963 hadi mwanzoni mwa mwaka 1965, utawala wa Johnson ulikabiliwa na chaguo la kimakusudi kuhusu kama inapaswa kuongeza au kupunguza kufanya ni mtihani wa mapenzi yote, ambayo ilikuja kuwa, au kutafuta kisingizio cha kuondoka - labda kwa madai kwamba utawala wa Kusini ulikuwa umekuwa mbaya sana kuwa na thamani ya msaada zaidi wa Marekani au maisha.  <response>: From late 1963 to early 1965, Logevall claims, the Johnson administration faced a deliberate choice about whether it should raise or lower the stakes in Make it an all-out test of will, which it became, or look for an excuse to leave--perhaps with the claim that the regime in the South had become too ill-behaved to be worth further U.S. support or lives. 