What is the central idea of the article "show me the evidence"

The central idea of Shows me the evidence is regarding Obama's Fight for Rigor and Issues in Social Policy.

Explanation:

The first extensive account of the Obama administration's evidence-based actions. From its pioneer days, the Obama strategy planned and established several actions to fund social programs based on accurate evidence of progress. Ron Haskins and Greg Margolis tell the tale of six—crossing preschool and K-12 schooling, teen pregnancy, hiring and training, wellness, and community-based programs. Students will understand the fast-moving descriptions of the governments and policy considerations that shaped certain federal records and the examination of whether they will surely reshape national civil administration and considerably increase its consequences on the nation's civil obstacles.

So kristen decided to call a taxi. “so” is a subordinating conjunction.