a president pro tempore takes the vice president's place in senate.
who takes the vice president's place in senate?
a president pro tempore
the president pro tempore of the united states senate (often shortened to president pro tem) is the second-highest-ranking official of the united states senate. article one, section three of the united states constitution provides that the vice president of the united states is the president of the senate (despite not being a senator), and mandates that the senate must choose a president "pro tempore" to act in the vice president's absence. unlike the vice president, the president pro tempore is an elected member of the senate, able to speak or vote on any issue. selected by the senate at large, the president pro tempore has enjoyed many privileges and some limited powers. during the vice president's absence, the president pro tempore is empowered to preside over senate sessions. in practice, neither the vice president nor the president pro tempore usually presides; instead, the duty of presiding officer is rotated among junior u.s. senators of the majority party to give them experience in parliamentary procedure.
president pro tempore of the united states senate
bullet::::- others vice presidents - mohammad shariatmadari (vice president for executive affairs) (2013–2017). mohammad nahavandian (vice president for economic affairs) (2017–present), mohammad bagher nobakht (vice president and head of management and planning organization) (2016–present), majid ansari (vice president for legal affairs) (2016–2017), laya joneidi  (vice president for legal affairs) (2017–present). hossein-ali amiri (vice president for legal and parliamentary affairs) (2016–2017), hossein-ali amiri (vice president for parliamentary affairs) (2017–present), sorena sattari (vice president for science and technology affaires) (2013–present). shahindokht molaverdi (vice president for women's and family affairs) (2014–2017). masoumeh ebtekar (vice president for women's and family affairs) (2017–present). zahra ahmadipour (vice president of cultural heritage and tourism organization) (2016–2017), ali asghar mounesan (vice president of cultural heritage and tourism organization) (2017–present), ali akbar salehi (vice president and head of atomic energy organization) (2013–present), mohammad-ali shahidi (vice president and head of martyrs and self-sacrifice's affairs foundation) (2016–present). jamshid ansari (vice president and head of administrative and recruitment organization) (2016–present). masoumeh ebtekar (vice president and head of environmental protection organization) (2013–2017). isa kalantari (vice president and head of environmental protection organization) (2017–present)
list of vice presidents in 2017