A member of the Sejm between 1997 and 2001 and again between 2007 and 2011, Sekuła also served as President of the Supreme Audit Office between 2001 and 2007, as Undersecretary of State at the Ministry of Finance between 2011 and 2013, and as the sixth Marshal of Silesian Voivodeship between 2013 and 2014.

[8] Following the election of Sekuła, the Silesian Autonomy Movement pulled out of the Civic Platform and Polish People's Party coalition in the executive board after the dismissal of its representative.

[9] As marshal, Sekuła successfully advocated the Polish Football Association to choose Silesian Stadium as a candidate for the UEFA Euro 2020 championship.

[11] During his marshalship, Sekuła was commonly found commenting on the neatness of dress and organization of provincial government officials, prompting pro-cycling groups to accuse the marshal of not approving bureaucrats commuting to work by bicycle.

[12] Sekuła also was an advocate for protecting children from the effects of the War in Donbass in eastern Ukraine, noting the strong connections Silesians had with the Donbas region.